CVE-2018-9251

Name: CVE-2018-9251
Creator: NVD / NIST
Published: 2018-04-04T02:29:00.32+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.44%

Last modified Jun 17, 2026

CVE-2018-9251 is a vulnerability of currently unknown severity. The xz_decomp function in xzlib.c in libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035.. EPSS estimates a 2.44% chance of exploitation in the next 30 days.

Description

The xz_decomp function in xzlib.c in libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035.

Metrics

EPSS Probability

2.44%

82.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-835

Affected Software

Vendor	Product	Versions
Xmlsoft	Libxml2	2.9.8
Debian	Debian Linux	8.0

References

https://bugzilla.gnome.org/show_bug.cgi?id=794914Exploit, Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00035.htmlThird Party Advisory
https://bugzilla.gnome.org/show_bug.cgi?id=794914Exploit, Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00035.htmlThird Party Advisory

Timeline

Published: Apr 4, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-9251?

How severe is CVE-2018-9251?

Severity scoring for CVE-2018-9251 is pending analysis. The EPSS model estimates a 2.44% probability of exploitation in the next 30 days.

How do I fix CVE-2018-9251?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-9251?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST